[A 4 in 1 function] Attach the 4 receivers to your key chain or other items, then only press the color button on the remote control, the beep sounds can help you locate lost items. It's very easy to use. [Powerful Capability with Long Range] Radio frequency can penetrate through walls, floors, cushions, leather, etc to help you find your object up to 30 meters away. [Sound and Light] The receiver emits sounds / beeps, leading you to your lost object. The remote is equipped with an LED touch light for better nighttime visibility when locating the buttons [Large Buttons] Large buttons make the key finder; an object specially adapted for the elderly. The transmitter is removable from the base and can be carried with you to find your lost items. [Nice decoration] This object locator is a nice display for tea table, TV bench, table bedside table, computer desk or bookcase. A great Christmas gift for your families, friends and lovely pets.